type-fest
A collection of essential TypeScript types (by sindresorhus)
ts-essentials
All essential TypeScript types in one place 🤙 (by ts-essentials)
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| type-fest | ts-essentials | |
|---|---|---|
| 32 | 4 | |
| 13,261 | 3,569 | |
| - | 0.5% | |
| 9.0 | 4.6 | |
| 4 days ago | 3 days ago | |
| TypeScript | TypeScript | |
| Creative Commons Zero v1.0 Universal | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
type-fest
Posts with mentions or reviews of type-fest.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-01-30.
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Adding type safety to object IDs in TypeScript
Related: https://github.com/sindresorhus/type-fest/blob/main/source/o...
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Enforcing Localization through Types
Typescript doesn’t natively provide an Opaque type that we can use to define a string that has already been localized. If the data looks like a string, Typescript will consider it a string. We can however use utility types that simulate opaque types, like the Opaque definition in type-fest:
- Is there a better way to do read-only types
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Boost Your JavaScript with JSDoc Typing
With these powerful features, you can create dynamic and expressive types. One last thing I want to mention before moving on, is that you can install libraries with which you can add more types to your project like type-fest or utility-types. These libraries contain a lot of useful types that you can use in your project.
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Essential Code Organization Principles
Also, it’s not as restrictive as mutability tools — if you know what you are doing and want to ignore this limitation for a particular case, you can apply the -readonly modifier or the Writeable type from type-fest or ts-essentials.
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Best practice for typing server data for get vs post in client code
Remember you can derive one type from another type so you can make sure they don't diverge. SetOptional type util
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All JavaScript and TypeScript features of the last 3 years explained
Some folks have built whole SQL databases and DSL compilers in the TS type system. These tend to be toy projects with disclaimers not to use them. But the type system being Turing complete[0] (for better or worse), pretty much whatever you can imagine. This project[1] is one I actually return to frequently for practical ideas.
0: https://github.com/microsoft/TypeScript/issues/14833
1: https://github.com/sindresorhus/type-fest
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Question on how to handle an object that can have different states and avoid assertions.
Have a look at SetRequired and SetOptional in type-fest
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Preventing more parameters being passed than needed by a type definition?
Try the Exact method provided by Type Fest, looks like it does what you're looking for
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Creating a derived type of only required parameters from a base type?
This is a fairly common scenario and available via libraries like type-fest or implementable with a couple lines of code.
ts-essentials
Posts with mentions or reviews of ts-essentials.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-22.
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Essential Code Organization Principles
Also, it’s not as restrictive as mutability tools — if you know what you are doing and want to ignore this limitation for a particular case, you can apply the -readonly modifier or the Writeable type from type-fest or ts-essentials.
- libraries you are happy that you discovered them
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ts-essentials VS utility-types - a user suggested alternative
2 projects | 24 Nov 2022
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Explicit empty list type
True a readonly array would help, or even better yet deep readonly (which comes with ts-essentials) when dealing with non-primitive arrays
What are some alternatives?
When comparing type-fest and ts-essentials you can also consider the following projects:
ts-toolbelt - đź‘· TypeScript's largest type utility library
runtypes - Runtime validation for static types
Superstruct - A simple and composable way to validate data in JavaScript (and TypeScript).
tss-react - ✨ Dynamic CSS-in-TS solution, based on Emotion
DefinitelyTyped - The repository for high quality TypeScript type definitions. [Moved to: https://github.com/DefinitelyTyped/DefinitelyTyped]
zod - TypeScript-first schema validation with static type inference
talk-typelevel-ts - Code samples for my talk “Type-level programming in TypeScript”
variant - Variant types in TypeScript
robot - 🤖 A functional, immutable Finite State Machine library
io-ts - Runtime type system for IO decoding/encoding
brainfuck-ts-types - A brainfuck interpreter running within the typescript type system
type-fest vs ts-toolbelt
ts-essentials vs ts-toolbelt
type-fest vs runtypes
ts-essentials vs Superstruct
type-fest vs tss-react
ts-essentials vs DefinitelyTyped
type-fest vs zod
ts-essentials vs talk-typelevel-ts
type-fest vs variant
ts-essentials vs robot
type-fest vs io-ts
ts-essentials vs brainfuck-ts-types